The Insane Tech That Make America's Cup Yachts Fly on Water
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- čas přidán 5. 09. 2024
- The America's Cup racing series is not a boat race, it's an air race. The boats are airplanes that rise up on foils, using the same principles of lift as an aircraft-with none of the safeguards, and much of the risk.
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okay i understand how these boats can go faster then the speed of the wind they are in by their "sails" being airplane foils and "apparent wind speed" of a moving boat, but i dont understand that amazon thing with no wind at all.. anyone care to elaborate?
I assume the hydrofoil is designed in such a way that as water from the current flows over it there is a net force pushing the boat forwards.
Didnt think that was physically possible with the friction from water..
Ryan Bernard I'd imagine it works in the same way. Replace apparent wind with apparent water. They wouldn't be able to do it 'head to water', so would presumably have to tack across the flow.
To generate apparent wind you have to be moving.. With no wind and no movement how does it gererate "lift" or forward motion? My best guess is it goes down the river with current first, generates apparent wind from the speed gained from current and then uses that to turn around and head up river gaining more apparent wind.. Orrrrr the water and wind switch "purposes" and the air/sails are used to track and the foils are used for the power with the apparent water speed.. The ratio of the surface area of sail to foil might be enough to compensate for airs much lower density and viscosicty to switch roles.. Idk im pretty sure these things use magic
Ryan Bernard Yeah, I don't think he was being literal, I figured you'd need to at least get the boat moving for it to work. These boats don't sail in any real current as conditions need to be perfect, but he's simply saying that they derive both lift and thrust from the movement of the water over the boards. I mean, it's still all witchcraft to me, but I think that was what he was trying to say
For anyone wondering, those guys turning the handles is to generate hydrauluc pressure in a tank to trim the sail and foils. These boats have around 3 tonnes of pressure on the sail and 15 tonnes on the foils.
Thanks, captain! ^_^
This right here is the real value!
+Simon there's a few reasons they don't use electric. First off, each guy is producing roughly 700W, that's 2.8KW. With an average battery charging at "1C", it would take a 235Ah 12v battery to absorb that power-that's 5 car batteries or 200lbs for storage alone. Next, you have to factor in the weight of the motors needed to exert all that force. You don't need much gear to empty a hydraulic accumulator into a cylinder and push a foil down in a very short time, just the accumulator, pipes, the cylinder and a valve. But to get the same working for an electric system, you need a heavy energy store (it will be heavier than the accumulator tank), heavy, expensive and complicated control equipment (ESCs to regulate the power going to the electric motor), a massive electric motor and gearing to step down RPM into torque (the most efficient way to do this step-down is to go from the electric motor to a hydraulic pump, then into a cylinder).
Next is the efficiency, which "10x better" is an estimate in the wrong direction. The power cycle would go:
Generator -> Rectifier -> Charge Controller -> Battery -> Inverter/Controller -> Load.
Each step will not exceed 80% efficiency, so if you put in 1000Wh you'd only get roughly 250Wh back. That's 25% efficient. I don't know where hydraulic sits, but I can promise you it will be much better because it's far simpler.
I think all of that is wrong. A couple of Li batteries and a small DC motor would easily outperform human power. Why would you need a generator and, rectifier etc? My guess is its not allowed, as stated above.
I was wondering... Thanks!
I sure do miss the Chris Harris, Matt Farah and Mike Musto days of /DRIVE
half way through they have not explained any of the technology , how it generally works, just that its important. mis titled
It should really be called The New Zealand Cup these days. All the teams have kiwis in critical positions all through the teams. If your team isn't filled with Kiwis, you might as well not turn up to the Louis Vuitton. :P
"NOT A CAR!" - @RCR Amazing by the way.
/SAIL
i have zero knowledge about boat or what ever floating on the water, but im amaze watching that boat flying above water and gliding like that, and i can tell that is a wicked boat
Amazing watching these things tear around!!! GO TEAM NZ
These things are pretty incredible
As a mechanical engineering student who knows close to nothing about these boats this video didn't include a whole lot of 'insane tech'. It left me with quite a few questions like where does the lift come from? Are those 4 foils in the water what gives the boat lift? Do they change pitch, roll and yaw by lifting each of those foils out of the water? Also what is the purpose behind the guys spinning those pedals? Don't get me wrong the video was cool and enjoyable but an extra level of depth in how it works would be cool.
Nika Ross look up (how americas cup boats fly) by the world sailing show on CZcams they explain how the boats themselves work pretty well however a lot of the information on these boats especially the foils are well kept secrets. As for the pedaling that's done to provide hydraulic pressure to move the wings and some other things such as steering I believe.
Allways nice to see the engineering behind each kind of competition.
"The fastest boat has won the Americas Cup for the last 160 years"
Umm...isn't whoever is the fastest the winner of any race?
It's not just a drag race. Getting the most out of the boat is a major part of it as well.
Nope, the other 50% of winning the race is tactical decisions, like where to go.
I would be surprised if it never happend that a slower boat won the cup. You need to be as fast as possible as well as sail as short as possible.
Not always, in fact there are many cases in autoracing where the fastest car in qualifying broke during the race itself or ran out of gas in the final laps. Stuff happens, doesn't mean being the fastest isn't a huge asset, just that it doesn't always mean it will win the race. If not for an amazing set of circumstances Oracle USA (the faster boat) would have lost the 2013 America's cup. EmiratesNZ missed winning it all by three minutes over the time limit on a Cup race. The Oracle team finally figured out their boat and despite each race being an elimination race they trounced the Kiwis the rest of the way. The faster boat won, but it took the USA team to the brink to figure it out and that three minute too long race for the Emirates team.
Sometimes its survival of the fittest, so being the strongest means more than bein' the fastest.
There is a wind sail and a water sail. The water sail also has a perpendicular wing which creates lift. The wind sail force plus the water sail force differential gives the forward movement. The forward movement with the perpendicular water wing allows lift. It's like an air plane wing except they are not moving fast enough for an air wing to lift but with the higher density of water vs air lift is achieved at lower speeds. Lift allows for less water friction, more speed, and more lift. Excellent engineering. Can't wait till its all computer controlled.
This video shows a nice view on the people behind these boats. But I thought it'd have more focus on the tech and how it works.
the production quality of this film is insanely good
Sure would've liked to see you guys in the next Americas cup because you guys were one of the best against Team NZ...
This is as far from a boat as an F1 is from a road car.
The teams are conformed by elite athletes and the engeneering on this "boats" is amazing, nice video
Fascinating technologies. Sailing faster than the wind! It's like we've discovered a perpetual machine.
Didnt know this even existed, would love a more in depth look
Wardo America's Cup CZcams channel and sometimes the Oracle teams own CZcams channel goes into the basic engineering. They never give the full details do to this being an active racing series but still decent amount to learn. The last America's Cup was the biggest comeback in sports history USA vs NZ but no one pays attention to sailing
9:50 What is the name of the music / tune ?
Any kiwis watching? Remember when dean made it lean in San Francisco?
Eratiik That Toyota ad "lean with Dean"😂😂
☝️
Dean Barker waives the rules... but New Zealand rules the waves!
people may say its just sailing but its damn good racing. Very exciting stuff.
except for spithill choking.
Patrick Rich n
4:33 A giant of a man called Brittle. Love it :)
we have been doing this with water skiis since high school 1980's three-five inch stainless horisontel wing on the end of a 24" stainless keel . then a carefull balance at speed easily lifted you 18" or so into the keel extention and reduced drag on the tow boat exponetialy . It looked like you were flying from morethan 20 ' away as you could not see the keel very well against the water.
great video, but I still have no clue about the technology! More information, less sail porn please
A beautiful piece of engineering
8:39 Wow.
Is there some rule that the basic boat design and size is exactly the same ? - otherwise I would have thought they would be very much more different. The 'differences' they talk about seem to be with just minor - if important - components.
lsbrother As far I know the hull is the same for everyone.
Stupid question. What do these contraptions have to do with sailboats? LOL.
Arisgod27 sailing has now become a sport in which foiling is taking over. This started to hit main stream in the 34th America's Cup. Foiling is future of sailing
Fascinating.
Was frankly shocked at how little information was presented. Pretty pictures though.
Sail powered aircraft would be awesome.
Fab video. Not a subject I'm familiar with. Fascinating 👍
"same principles of lift as an aircraft-with none of the safeguards, and much of the risk"
- well they only have 5m to fall not 5,000 !
Awesome!
While I don't want to diminish what these guys are doing, I'm a little surprised that since we've had hydrofoils for decades, why is it just happening now? Is it an acknowledgement that this is the "next" step? Is it a confluence of technologies that are now really available? And ultimately, is this really sailboat racing anymore?
It's new to really big cats like the AC72s from the last Cup and now people understand it, the pace of advancement is incredible. It's just like the ground effects race in F1, but in reverse and on water.
What confuses me is what are the cranks for? Why do people turn those cranks? What are they doing?
They're compressing gas (nitrogen I think) into tanks. The pressurized gas is then used for sails, dagger-boards, etc.
Razorfish Well, that's the first bit of useful information I've found so far. I even Googled for an answer, and found absolutely nothing. I suppose the dagger boards are what, having to do with the lowering and raising of the foils? Crikey.
It actually created hydraulic pressure to move the sail in and out and the foils up and down, just like the flaps on a plane
Those "cranks," are simply mechanical winches - they 've traditionally been used to tighten the ropes that pull in the sails. (oddly enough to us land lubbers, the ropes that control sails are actually called, "sheets".) I'm not sure if the winches serve any other purpose on these space age machines, ie, create hydraulic pressure, compress gas, change hull shapes, or foil angles, turn electric generators that power hidden propellers, grind expresso beans for the skipper - who the hell knows what they're up to any more!? It's worse than F1!
Ropes are almost a thing of the past now, at least on the ETNZ boat.
These are so cool! Nice video.
Did whoever set the title even watch the video? The title really only applies to about 10 seconds of the video starting at 7:55, the rest of the video is about the team, not the tech, it's an interesting video but it is not at all what the title says it is.
Go Land Rover BAR !!! #bringthecuphome
john murray or retire from a race because you got crushed so hard
SAIL LIFE ⛵️ Science is epic. Air and Water are FLUIDS
I get because it's racing you featured it but it's still sailing IMO & not driving. I tried to watch it but sorry can't >.
New coolest sport
Bradley Cooper is a sailor now?
They're pedling with their arms?
If you are sitting in a Sailboat,in a windstill..Sit to almost lay the Sails in the water..Change sitting,to other side,at the same time Drawing the sails in,sharply..The Boat will start moving,you can get home without any Wind,We called it "Pumping the Sails".Another would call it Cheating,(Which it is).
Google up "Sail Pumping"
It's unreal when you see them fly/hover/glide over the water the way they do, so much so that my mom and grandma were glued to the TV watching the race earlier this year. Car manufacturers have camouflaged their prototypes by wrapping them so why not do the same with the boats, just saying.
really cool video
Sweet Juice!
you guys want fast sailing? two words. ICE BOATING. 100km/h is very possible.
is /Drive+ dead?
What's your point
Supercharged it has been for awhile there was never enough money to support video production with the subscription base videos. I think they might still do episodes for Drive on NBCSports but I canceled my cable
robm425 yeah I doubt many people paid for subscription I remember a year of so ago people were so pissed off
"Everyone who visits has to sign a nondisclosure form".... /DRIVE cameraman doesn't give a fuuuuuuuck!
go team nz 🏆 🖒
why is there a swedish flag on the boat?
One of the teams - Artemis - is Swedish.
It's very cool but this video sounds pretentious as hell. The design work these guys are doing is standard stuff, it's not like the invented the hydrofoil or anything. Saying that is incredibly impressive stuff.
Yay Sweden!
It all comes down mathematics.
Cloud atlas
bucks
Like if you are a sailor and a car enthusiast as well
The hydrofoil was invented over 100 years ago.
hey come on, that doesn't matter... marketing takes precedence.
This is hydrofoil on a new level
Razorfish so was the wheel
Razorfish I
90% of this is just B-roll and filler material with pretentious "artistic" cinematography. Only 10% of it was the actual tech and actual boat footage.
/SAIL (budadadadaDAdadada)
fast boats and full beards
Artemis is a joke. They might as well have been sailing with an American flag on their stern. They were part of American Television's plans to sell off the pieces, and change the rules to the point where only their boats would even have a chance to win. New Zealand refused to be part of the deal. The plan was to get Artemis to sail against BMW, and have them " take a dive " so the Cup would stay in the US for another 132 years. New Zealand wanted to defend the honour and tradition in harmony with the Deed of Gift, which would have ended up in a shredder at BMW racing. The Kiwis want a fair regatta where none of that BS has a chance of happening. I hope it stays in Auckland for 132 years. They at least know what it means to the world of sailing.
whoaa
😀
/FLOAT
/DRIVE
This isn't sailing bring back 12m
Where is the insane tech? Such a misleading title.
You're kidding, right?
It's there, you're just to stupid to understand the nonce
/DRIVE I was hoping for a bit more explanation into the tech. As someone who knows nothing about this boats I still have no idea how they work or what the tech really is. I don't think the guy was joking.
No I am not. You spent more time on spying tactics and the safety crew. Important pieces but "insane tech". How about spending 2 seconds on grinders and hydraulics making possible to even trim those powerful beasts. There is so much more than special dagger boards. How about how they trim them beyond the boards?
billy mccabe No offense intended. This is an introduction to the hydrofoil world, but if you guys are really interested in going nerdier on this stuff, we can definitely produce something more in-depth. The aerodynamics and marine hydrodynamics tech is fascinating. Just say the word and we'll go do it.
I feel like the advancement of technology has taken away from the sports that are my favorites such as formula one and sailing because there is so much technical shit that goes on and the stakes get so high and the machines get so complicated that it's almost not even sailing and formula one is almost unenjoyable disagree with me all you want but this is the way things are going
Vitrum Pictures I disagree very much. It is much better like this
Too bad we can't see sailboats that actually sail in the water again...
Second
first 😁
NOT A CAR oh wait wrong channel
We do all kinds of conveyances. Enjoy, or don't.
/DRIVE I don't think you understand the reference I am making good sir
OH NO! Please don't tell Mr. Regular. He hates when we don't, unghhhhhh, get the references.
this channel is called /DRIVE not /FLOAT. unsubscribed